Atrial flutter that is a form of tachycardia and is associated with heart rhythm faster dan 100 beats per minute; it is a complication that usually appears in patients suffering from hypertension and coronary heart disease, in atrial flutter this condition emerges in heart’s atria.

Left bundle branch block is an abnormal condition that appears on EKG consisting in left ventricle’s contraction registered after right ventricle contraction.

A U wave inversion is a complication that shows during a treadmill test and commonly indicates lesions on the coronary artery.

Angina pectoris, one of the most common complications of ischemic heart disease, it can be characterized by severe chest pain and chest discomfort.

A trial fibrillation is cardiac arrhythmia that occurs in two of the heart’s upper chambers, the atrias is described by uncoordinated contractions within the myocardial fibers; the atrium cannot contract at once and fails to pump blood efficiently. This can become a chronicle condition and increases heart attack risks.

Sick sinus syndrome is an abnormality that appears in the right atrium at the level of the sinus node that produces electric impulses responsible with hearth rhythm, and is characterized by a series of arrhythmias.

Cardiac failure is a condition in which the heart cannot provide enough blood in order to satisfy body’s necessities. Cardiac failure can be right or left sided depending on which ventricle it affects, in bought cases one of the ventricles loses its pumping function and the blood can back up towards other areas of the body causing congestion.

Low output is a condition in which the heart pumps an insufficient quantity of blood within every minute.

Right bundle branch block is a complication in which the right ventricle functions abnormally while the left ventricle has a normal activity.

Hypotension is an abnormal possibly life threatening condition characterized by very low blood pressure.

T wave inversion is a medical condition characterized by the inversion of electrical potentials at cellular level in the bottom chambers of the heart; it can be discovered in an EKG test and can be caused by anxiety hyperventilation or stroke.

QT lengtheningisa condition characterized by ventricular arrhythmias and fainting episodes hat can usually be diagnosed on an EKG.

Dilated cardiomyopathy also known as congestive cardiomyopathy is a complication characterized by heart enlargement, and heart deficiency which affects the liver, the lungs and other functional systems.

Sudden death can also follow ischemic heart disease and is characterized by cardiac failure.

Atrioventricular node conduction block characterized by deficiencies and partial or complete failure of conducting atrial impulse to the ventricle at the atrioventricular node.